On the coronal lines in the chromosphere at the 1970 eclipse |
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| Authors: | M Kanno T Tsubaki H Kurokawa |
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| Institution: | (1) Hida Observatory, University of Kyoto, Kamitakara, Gifu-Ken, Japan;(2) Institute of Earth Science and Astrophysics, University of Shiga, Ohtsu, Japan;(3) Kwasan Observatory, University of Kyoto, Yamashina, Kyoto, Japan |
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| Abstract: | Spectrographic observations of the flash spectrum were made by the Kwasan Observatory at the total solar eclipse on 7 March, 1970. The integrated intensities of Fexiv  5303, Fex 6374, and the continuum were measured on the spectrograms as a function of height above the Sun's limb. It was found that a large amount of emission in the coronal lines originates in the interspicular regions of the chromosphere. Analysis of the data yielded that the interspicular regions consist of coronal material of T
e = 1.6 × 106–1.2 × 106 and log N
e = 8.5–9.5, and that a decrease in T
e and an increase in N
e occur with decreasing height. |
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